Radiator



A. NEBEL.

v RADIATOR.

APPLICATION FILED OCT. 6,1919.

. Pawn 1mm, W211 Jfl/l/EA/TOR a ZMM 33 L J Arfiafumm PATENT OFHCE.

ALBERT NEBEL, OF BROOKLYN, NEW YORK.

RADIATOR.

Application filed October 6, 1919.

T 0 all whom it may concern:

Be it known that l, ALBERT NEBEL, a citizen of the United States, and resident of the city of New York, borough of Brooklyn, county of Kings, and State of New York, have invented a new and Improved Radiator, of which the following is a full, clear, and exact description.

This invention relates generally to liquid cooling devices, and is particularly adapted for use as a radiator for automobiles, but it is understood it may be used whereverit is desirable to cool a circulating liquid.

In radiators-heretofore provided for auto mobiles, it has been the aim to obtain as large a surface exposed to the air as possible with which the circulating fluid, such as' ,water, may contact so that the liquid may be cooled. In practice, the structures used embody a great number ofcindependent passages, of varying form, which are expensive to manufacture, diflicult to repair, and usually affording unsatisfactory means for compensating for expansion and contraction of the tubes upon change of temperature.

One of the objects of this invention is 'to provide a radiator having its parts constructed and arranged so as to bring the circulating fluid in contact with a large exposed surface whereby the liquid may be effectively cooled, and this in a limited space. A further object of this invention is to provide a radiator having its parts constructed and arranged so as to compensate for a change in temperature. Still a further object ofthis invention is to provide a radiator having its parts so constructed and arranged that they may be readily and conveniently assembled, repaired or replaced.

More specifically, one of the obj ects' of this invention is to provide a radiator in'which a plurality of independent intercommunicat-' ing circulating passages are formed so as to obtain an effective cooling of the llquid in a minimum space.

A further object o this invention is to provide in a radiator having vertically extending tubes, a construction whereby the overflow pipe may be arranged within the radiator extending through one of the tubes, and having an outlet near the bottom thereof,'so that there will be no chance of the said overflow pipe interfering with the rotation.

of the fan.

Still a further object of this lIlYeIlljlQIl'ls to provide a construction which will permlt Specification of Letters Patent.

Patented May Ml, 1921.

Serial No. 328,745.

one end of the tube to be removably connected with the reservoir, Without the use of diator having a plurality of reservoirs, connected by vertically extending tubes having transverse corrugations encircling the same, and a second tube within the first named 'tube, partially closed at one end, and having longitudinally extending grooves or channels so that independent circulating passages are formed between the two tubes, another oirculating passage being formed within the second tube. y The above and other objects and advantages of the invention will be apparent from the following description and the accompanying drawings in which similar characters of reference designate corresponding.

parts in the several views.

' Figure 1 is a broken elevational View partly in section, of a radiator embodying the invention, in which one of the tubes is broken away and shown in section, showing one of the arrangements of the tubes.

Fig. 2 is an enlarged elevational sectional view of one of the tubes, showing the arrangement of the various tubes, the overflow pipe, and the inlet and outlet of the radiator.

Fig. 3 is a sectional View taken on the line 3-3 of Fig. 2.

In Fig. 1 of the drawing, showing one of the practical embodiments of the invention, the radiator comprises a plurality of reservoirs 1 and 2 and may be of any suitable form and size, and constructed of any suitable materials well known in the art. The

therewith is also provided. The lower res'- ervoir 2, is provided with the outlet passage;

7. The inlet and outlet passages 6 .and 7 may be connected with an engine or other device having circulating fluids which are 5 to be cooled.

/ exposed to the air, with which'the circulatreservoir 2,.thro'ugh the longitudinally exi not shown. 1

ing liquid may contact in order that the temperature thereof may be regulated or controlled. Another tubular member 10 is arranged within the'first mentioned tube, and extends longitudinally thereof, 'one end 11 of the tube being partially closed, leaving an opening 12. The tubular member 10 is provided with longitudinally extending grooves or channels 13 which form with the tubular member 8, a plurality of independent longitudinally extending circulating passages or channels 14 more clearly shown in Fig. 3. Further, another circulating passag or channel is formed within the tubular member 10. Itisto be understood however that the corrugations on the tubular member 8, and the grooves 13 of the tubular member 10, may be of any desired form;

It is to be noted that when the grooved tubular member 10 is'arranged within the tubular member 8, the transverse corrugations 9 form intercommunicating passages affording a relatively large exposed surface, with the longitudinally extending passages formed by the grooves or channels in a member 10. It is thus seen that the longi- 't-udinally extending passages afford a means of connecting numerous other channels formed by the transverse corrugations encircling the outer member 8. In operation,

the latter corrugations function as pockets in which the temperature of the liquid may e changed, the said liquid entering the longitudinal circulating passages at the proper time. i 4 i I he.

usedon an automobile, the water will fill the transverse corrugations,.and when'sutli ciently cool, will be conducted to'gthe lowel tending channels 11, from which reservoir the water will in due time find its way through the outlet 7 to a. suitable engine, After the liquid used in the *engine, has been again heated, the water will and: its way through circulating passages In the'form shown, the ends of the outer tubes 8,are removably held'in fixed relation 1 tothe-difi'erent reservoirs, by a mechanical connection without the use of solder or similair material. This-is'a feature which perj' mi tsof i theready and convenient assembly and repair ofthe different parts of the radi- In=the form shown, the end of the tube 8 is provided with a shoulder 15 and is the radiator is used as a cooling device, as for instance Wlll be the case when a shoulder 17 against which the shoulder 17 abuts, a washer 18 being preferably intcr posed between the shoulders 15 and 17 respectively. As a means of holding the shoulder 15 within the aperture against the shoulder 17 in fixed relation thereto, a sleeve 19 .is preferably threaded in the aperture 16. Preferably, the sleeve is provided with an annular shoulder 20 abutting against the outer surface of the reservoir, and a hexagon nut 21 formed preferably integral therewith to facilitate the positioning of the sleeve 19, but it is to be understood that other suitable means" may be provided for holding one end of the tube .and the reservoir in relatively fixed relation.

It is to be noted that the contraction and expansion of the various parts of the radiator due to temperature change, will be compensated for by the corrugated and grooved portions of the tubes, thus eliminating leaky joints and tubes.- I

A further feature of the radiator, is the provision of a concealed overflow tube 22 shown extending through one of the tubes, and being bent at the bottom, passing through the side of the lower reservoir 2. By this construction, the overflow tube is concealechand is so positioned that there is no possibility of coming in contact with the revolving fan, as is the case with theusual construction.

One end of the inner tube 10, is partially closed leaving an opening 12, which permits a certain part of the liquid-to circulate therethrough, and eliminates the formation of a pocket in which non-circulating air or water might collect. With reference to the form of the transverse corrugations, encircling the outer tube 8, preferably the corrugations are wave like in form, and so proportioned that the liquid will not become pocketed therein, but when sufficiently cooled, will continue i the circulating channels. r v 1 Another feature ofthe radiator construction, is that if it is desired to decrease the amount of liquid circulated, the desired number of tubes may be readily. disconnect- I ed and the circulating passage. stopped.

While there has been shown herem apractical embodiment of the invention, it is understood that varius changes and modifications'may be made without departing'from the spirit and scope of this invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is' p 1. In a radiator comprising a plurality of reservoirs, and. a tubeconnecting the same, a means for connecting one end of the tube to the reservoir, which consists in providin .a threaded recess in the reservoir, a shou der on one end of the tube, and ainiember adapted to be inserted in the reoess,2md to 2. In a radiator, a reservoir and a tube,

- and means for connecting the tube to the reservoir,- said meanscomprising a screwthreacled recess formed in the reservoir and adapted to receive the end ofthe tube a shoulder formed on said end of the tube and 10 a threaded member adapted to be received Within the screw-threaded recess to retain the tube therein by reason of its engagement with the shoulder formed upon the tube.

ALBERT NEBEL. 

